Utilize a helper function for all MongoDB/Meteor collections

Discover a library that offers the ability to link helpers to collections in this manner:

Meteor.users.helpers({
  profile: function() {
    return Profiles.findOne(this.profileId);
  }
});

This method works well for established collections, but my goal is to create "general" helpers that are automatically applied to every single collection in my database.

EveryCollection.helpers({
  fullName: function() {
    var schema = this.simpleSchema()._schema;
    if(hasKey(schema, 'firstName') && hasKey(schema, 'lastName')) {
      return getKey(this, 'firstName') + " " + getKey(this, 'lastName');
    }
  }
});

With this in place, I could use it like this:

> Admins.findOne().fullName();
"Cat Woman"
> Meteor.users.findOne().fullName();
"Bat Man"

This helper would be added by default to every collection. Is it feasible? It seems like it may involve modifying the prototype, but I am uncertain about where exactly to add it.

EDIT: The example provided was not ideal, looking for something that functions on an instance variable

Answer №1

Extend the Mongo.Collection prototype with a new method called idMap, which returns an array of all _id values in the collection.
Meteor.users.idMap();

By examining line #1 of the code snippet provided, you can see the implementation of the idMap function.

Visit this link to learn more about the collections helper package.

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